package com.sky.service.impl;


import com.sky.entity.Orders;
import com.sky.mapper.OrderMapper;
import com.sky.service.OrderService;
import com.sky.service.ReportService;
import com.sky.vo.TurnoverReportVO;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.stereotype.Service;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@RequiredArgsConstructor
@Service
@Slf4j
public class ReportServiceImpI implements ReportService {


    private final OrderMapper orderMapper;
    /**
     * 统计指定时间区间内的营业额数据
     * @param begin
     * @param end
     * @return
     */
    @Override
    public TurnoverReportVO getTurnoverStatistics(LocalDate begin, LocalDate end) {
        //当前集合用于存放从begin到end范围内的每天的日期
        List<LocalDate> dateList=new ArrayList<>();
         dateList.add(begin);
         while(!begin.equals(end)){
             begin=begin.plusDays(1);
             dateList.add(begin);
         }
         List<Double> turnoverList=new ArrayList<>();
        for (LocalDate date : dateList) {
            LocalDateTime beginTime = LocalDateTime.of(date, LocalTime.MIN);
            LocalDateTime endTime = LocalDateTime.of(date, LocalTime.MAX);
            Map map =new HashMap();
            map.put("begin",beginTime);
            map.put("end",endTime);
            map.put("status", Orders.COMPLETED);
            Double turnover=orderMapper.sumTurnoverByMap(map);
             turnover=turnover==null ?0.0 :turnover;
            turnoverList.add(turnover);
        }

        return TurnoverReportVO.builder()
                .dateList( StringUtils.join(dateList,","))
                .turnoverList(StringUtils.join(turnoverList,","))
                .build();
    }
}
